Newbie Qs from a guitarplayers view (Necks)

I've played guitar for as long as I can remember.
I thought I would do the damn job myself, so I started testing out basses.. with the plan of buying one, for my own recordings.

I stumbeled over a prestige neck on a BTB serie..
Best friggin' bass I ever played!
I mean.. fingerplay.. with a pick.. it didn't matter.
My hands instantly fell in love.

I'm not sure yet if I made a mistake, but I bought this 5 string BTB1205e almost in panic.. knowing the BTB series lost their prestige necks ages ago.
Lately I've missed the C-string more and more, and thought I would trade it somehow.. But those basses are kinda hard to come around these days

If I'm not that lucky soon, is there any necks on a 6-string bass that could have...well, you know.. the same qualities when it comes to feel, speed and such..??